Robert Boschgmbh

Carsten Bauer

Arno Altpeter

Friedhelm Meyer

Franz Armbruster

An ultrasonic welding device for mounting wire ends or wire loops on terminal lugs, particularly on terminal lugs or lamellas of drum-shaped commutators for rotating electrical machines, the arrangement comprises a sonotrode, an anvil against which terminal lugs abut during a welding process, and supporting surfaces provided on the anvil and on a free end of each terminal lug for taking up a sonotrode pressure and sonotrode vibrations transverse to a pressure direction. The supporting surfaces abut against one another before a start of a welding process by a relative movement of the anvil and the terminal lugs.

Ultrasonic welding device

A collector segment comprising a connector lug having a contact surface, to which a wire winding loop of electric machine rotor is to be welded, and extending in a direction radially outward relative to a rotational axis of the electric machine rotor, and positioning surfaces which define a position of the wire winding loop in an extension direction of the connecting lug.

Collector segment

A current collecting unit comprises a current collecting rail having a longitudinal axis and provided with a sleeve, and a connecting member mounted in the sleeve having one curved portion located above the longitudinal axis and another curved portion located below the longitudinal axis and both forming electrode supports.

Growing community of inventors

Stuttgart, Germany

Carsten Bauer